.<template>
  <div>
    <button @click="isShow = !isShow">显示/隐藏</button>
    <transition-group 
      appear
      name="animate__animated animate__bounce" 
      enter-active-class="animate__heartBeat"
      leave-active-class="animate__heartBeat"
    >
      <h1 v-show="isShow" key="1">你好啊！</h1>
      <h1 v-show="!isShow" key="2">最爱喝兽奶</h1>
    </transition-group>
  </div>
</template>

<script>
import 'animate.css'
export default {
  name:'myTest3',
  data(){
    return{
      isShow:true
    }
  }
}
</script>

<style scoped>
  h1{
    background: hotpink;
    transition: .5s;
  }
</style>